A taped message from his mother plays in the background. At first Jimy had played the records everyone played in those days.请老师翻译一下这个句子。另外，请分析一下：为什么先做的动作用一般过去时(played)，而后发生的动作却用过去完成时(had played)?
Two men who recently spent five days on a coral island wished they had stayed there longer.请问这个句子中,为什么用完成时态的 had stayed 呢, 这样体现不出"能"的意思吧? "希望能够呆更久",为什么不使用could stayed 呢?
各位老师好，我想问下我如下的两个关于静态词的使用，是否正确？I have loved him until the day he said he hated me.I have loved him for three years, but not long ago after he said he hated me I changed my mind.
By the end of this year， he________(teach) for thirty years.By this time next year, we________(do) business with each other for 10 years.请问老师以上两句用将来完成进行时或者将来完成时都对吗？
On 8th July, 1947, an army officer reported a crash at the Rosewell base in New Mexico, USA. .... Within hours, people from the base were saying a UFO had crashed there. But later the same day,.......请问此处为什么要用过去进行时呢? 一般过去时可以吗? Thanks♪(･ω･)ﾉ
...地毯铺在纸上，以免粘住地板。 The rain didn’t stop us from enjoying the trip.那场雨没有妨碍我们享受旅游的乐趣。（ii）构成“stop
yourself (from) doing something”。例如：I couldn’t
stop myself laughing.我忍不住大笑起来。She grabbed the rail to
sto...
It's not a good idea to change this file unless you know what you are doing.to change this 是不定式作主语 not a good idea 是表语，后面的unless you know what you are doing.又是什么成分呢？是单独接的一句话吗？